Animal Facts
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Animals That Glow in the Dark Naturally
From fireflies lighting up summer evenings to anglerfish hunting a thousand metres underwater, these animals produce their own light using nothing but chemistry. Here's how, and why.
Animals That Can Regrow Their Body Parts
Starfish can regrow an entire body from a single severed arm, and axolotls can rebuild whole limbs without scarring. Here's a look at nature's most capable regenerators, and how each one pulls it off.
Animals That Look Fake But Are Completely Real
From a sea slug that looks like a Pokémon to a bird that looks like a shoe, these animals seem too strange to be real, but every one of them is a genuine, documented species.
The Snail With an Iron Shell That Survives Volcanoes
The scaly-foot snail builds its shell out of actual iron and lives beside boiling volcanic vents nearly 2,000 metres underwater. Here's how it survives conditions that would kill almost anything else.
The Strongest Animals in the World
From dung beetles to elephants, discover which animals pack the most power for their size and how scientists measure animal strength.